The purpose of the scheme - which was trialled at the stadium last month to positive feedback from fans - is to help reunite vulnerable supporters with their parent, carer or personal assistant in the event that they become separated within the ground.
The wristband scheme is available to parents, carers and personal assistants accompanying children or adults with additional vulnerabilities, such as a learning disability or cognitive impairment.
Matchday Safeguarding Wristbands are available from the Local Heroes outside the stadium before a game and are completely free of charge.
To use the wristbands parents, carers or personal assistants should simply write their own name, contact telephone number and details of their seat location within the stadium on the wristband before attaching it to the child or adult they are responsible for.
Debra Flasby, safeguarding and welfare lead for Newcastle United and Newcastle United Foundation, said: "This scheme will then assist our safety stewards and safeguarding team to reunite vulnerable supporters with their family member or carer should they become separated."